Home / 21,103.33-29,121.37-11,541.36

Finding the Fourth Proportional to 21,103.33, 29,121.37 and 11,541.36

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Solution

The fourth proportional to 21,103.33, 29,121.37 and 11,541.36 is: 15,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,103.33 : 29,121.37 = 11,541.36 : x
  2. Step 2: Convert to fraction form
    21,103.33/29,121.37 = 11,541.36/x
  3. Step 3: Cross multiply
    21,103.33x = 29,121.37 × 11,541.36
  4. Step 4: Simplify right side
    21,103.33x = 336,100,214.86
  5. Step 5: Solve for x
    x = 336,100,214.86/21,103.33
  6. Step 6: Final answer
    x = 15,926.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.